What rank is denoted by the E-3 pay grade?

The rank denoted by the E-3 pay grade is Petty Officer Third Class. In the Navy's rank structure, enlisted personnel progress through pay grades that correspond to levels of responsibility and authority. E-3 is the pay grade just above E-2, and at this level, individuals have typically completed basic training and have begun to take on more responsibilities within their roles.

At the E-3 level, sailors are expected to show increasing competence in their duties and may begin to lead smaller teams or mentor less experienced personnel. This rank represents an important transitional phase as sailors start to establish their career paths in the Navy.

It's important to note that other ranks like Petty Officer Second Class and Chief Warrant Officer 2 belong to higher pay grades (E-4 and W-2, respectively), while the Master Chief Petty Officer is an even more senior rank at E-9. Therefore, E-3 specifically corresponds to Petty Officer Third Class, highlighting the increasing expertise and responsibilities trainees can expect as they progress in their naval career.